"Proposal to the Office of Naval Research for the Measurement of Solar Radio Radiation at 430 Megacycles, Continuation of ONR Contract Nonr-401(27), August 1, 1964 through July 31, 1965", Apr. 1, 1964

"Proposal to the Office of Naval Research for the Measurement of Solar Radio Radiation at 430 Megacycles, Continuation of ONR Contract Nonr-401(27), August 1, 1964 through July 31, 1965", Apr. 1, 1964, Box: 1, Folder: 9. Arecibo Ionospheric Observatory and Electrical Engineering reports, 16-6-3333. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/254534 Accessed December 30, 2025.